浆体黏度对清水混凝土表观质量的影响  

Effects of slurry viscosity on appearance quality of fair-faced concrete

作　　者：牟廷敏[1] 丁庆军[2] 黄修林[2] 周孝军[3] 范碧琨 

机构地区：[1]四川省交通运输厅公路规划勘察设计研究院,四川成都610041 [2]武汉理工大学,湖北武汉430070 [3]西华大学,四川成都610039

出　　处：《混凝土》2015年第2期104-106,共3页Concrete

摘　　要：依托成都市二环路改造工程中清水混凝土项目,研究了不同黏度值下混凝土的工作性能、粉煤灰分布情况及清水混凝土镜面效果。通过控制混凝土外加剂用量能够有效地控制清水混凝土的黏度,并改善清水混凝土的流动性及包裹性,有效地抑制粉煤灰在清水混凝土中的上浮情况,制备出的清水混凝土具有色泽均匀、美观的镜面效果,为高性能清水混凝土的制备提供了借鉴和经验。Relying on the Second Ring Road reconstruction project in Chengdu, the influence of different slurry viscosity values on workability of concrete,distribution of fly ash,and appearance quality of hardened concrete were studied.By controlling the amount of admixture, concrete viscosity can effectively control, and to improve liquidity and parcel of fair - faced concrete, effectively inhibit the floating of fly ash.Fair - faced concrete with uniform color and reflective appearance have prepared.The research would provide a refer- ence and experience for the preparation of high performance fair - face concrete.

关 键 词：粉煤灰 黏度值 工作性能 匀质性 

分 类 号：TU528.01[建筑科学—建筑技术科学]